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elf32_xlatetof(3elf)
elf32_xlatetof(3ELF) ELF Library Functions elf32_xlatetof(3ELF)
NAME
elf32_xlatetof, elf32_xlatetom, elf64_xlatetof, elf64_xlatetom - class-
dependent data translation
SYNOPSIS
cc [ flag ... ] file... -lelf [ library ... ]
#include <libelf.h>
Elf_Data *elf32_xlatetof(Elf_Data *dst, const Elf_Data *src,
uint_t encode);
Elf_Data *elf32_xlatetom(Elf_Data *dst, const Elf_Data *src,
uint_t encode);
Elf_Data *elf64_xlatetof(Elf_Data *dst, const Elf_Data *src,
uint_t encode);
Elf_Data *elf64_xlatetom(Elf_Data *dst, const Elf_Data *src,
uint_t encode);
DESCRIPTION
elf32_xlatetom() translates various data structures from their 32-bit
class file representations to their memory representations;
elf32_xlatetof() provides the inverse. This conversion is particularly
important for cross development environments. src is a pointer to the
source buffer that holds the original data; dst is a pointer to a des‐
tination buffer that will hold the translated copy. encode gives the
byte encoding in which the file objects are to be represented and must
have one of the encoding values defined for the ELF header's
e_ident[EI_DATA] entry (see elf_getident(3ELF)). If the data can be
translated, the functions return dst. Otherwise, they return NULL be‐
cause an error occurred, such as incompatible types, destination buffer
overflow, etc.
elf_getdata(3ELF) describes the Elf_Data descriptor, which the transla‐
tion routines use as follows:
d_buf Both the source and destination must have valid buffer
pointers.
d_type This member's value specifies the type of the data to
which d_buf points and the type of data to be created in
the destination. The program supplies a d_type value in
the source; the library sets the destination's d_type to
the same value. These values are summarized below.
d_size This member holds the total size, in bytes, of the memory
occupied by the source data and the size allocated for the
destination data. If the destination buffer is not large
enough, the routines do not change its original contents.
The translation routines reset the destination's d_size
member to the actual size required, after the translation
occurs. The source and destination sizes may differ.
d_version This member holds the version number of the objects (de‐
sired) in the buffer. The source and destination versions
are independent.
Translation routines allow the source and destination buffers to coin‐
cide. That is, dst→d_buf may equal src→d_buf. Other cases where the
source and destination buffers overlap give undefined behavior.
Elf_Type 32-Bit Memory Type
ELF_T_ADDR Elf32_Addr
ELF_T_BYTE unsigned char
ELF_T_DYN Elf32_Dyn
ELF_T_EHDR Elf32_Ehdr
ELF_T_HALF Elf32_Half
ELT_T_OFF Elf32_Off
ELF_T_PHDR Elf32_Phdr
ELF_T_REL Elf32_Rel
ELF_T_RELA Elf32_Rela
ELF_T_SHDR Elf32_Shdr
ELF_T_SWORD Elf32_Sword
ELF_T_SYM Elf32_Sym
ELF_T_WORD Elf32_Word
Translating buffers of type ELF_T_BYTE does not change the byte order.
For the 64−bit class, replace 32 with 64 as appropriate.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe
SEE ALSO
elf(3ELF), elf32_fsize(3ELF), elf_getdata(3ELF), elf_getident(3ELF),
libelf(3LIB), attributes(7)
Oracle Solaris 11.4 8 September 2014 elf32_xlatetof(3ELF)